Well, it's definitely a process and will probably take longer to set-up than you are expecting.

If you have this information of the people you are emailing, you can assign a user id to each one and include it in the link you send "http://www.domain.com/page.php?id=123213"

You then have this page.php script record the id# when it processes the page.

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I liken SEO to voodoo and make a sacrifice of rum and decapitate a chicken to Papa Legba, spirit of communications and crossroads, before every site launch.